118236823 has 2 divisors, whose sum is σ = 118236824. Its totient is φ = 118236822.

The previous prime is 118236763. The next prime is 118236827. The reversal of 118236823 is 328632811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118236823 - 2¹³ = 118228631 is a prime.

It is a super-3 number, since 3×118236823³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118236827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59118411 + 59118412.

It is an arithmetic number, because the mean of its divisors is an integer number (59118412).

Almost surely, 2^118236823 is an apocalyptic number.

118236823 is a deficient number, since it is larger than the sum of its proper divisors (1).

118236823 is an equidigital number, since it uses as much as digits as its factorization.

118236823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 34.

The square root of 118236823 is about 10873.6756894805. The cubic root of 118236823 is about 490.8147254010.

The spelling of 118236823 in words is "one hundred eighteen million, two hundred thirty-six thousand, eight hundred twenty-three".